A warning for those who try to play the game before knowing the name of the game's creator (and checking the rules for themselves). The setter has not fully explained the rules. The deaths and re-births should occur
simultaneously. If not, depending upon where you start the process, the results are likely to be different. Eg, starting from the top, cell (5,11) would stay alive because you've already killed cell (4,12); when in fact cell (5,11) should also die.
Since the setter doesn't indicate how the live and dead cells should finally be represented, it's probably not necessary to play the game at all.